Improvement in automatic oilers for steam-engines



THOMAS SIMS.

Improvement in `Automatic Oiter for Steam-Engines.

No. 126,651. y Paren1edMayl4,mz.

WITNESSES:

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lWiPRQlfEiv'iEhlT liti UTMATIC OILERS FOR S"l"EAVI-EblzINES.h

Specification forming part of Letters Patent No. 126,651, dated May 14,1572 Specification describing certain lmproyements 1n AutomaticOilers'for Steam-Engines,

invented by THOMAS; SIMS, aV resident ot the city of Philadelphia, inthe State of Pennsylvania. p

Therst part of my invention relates tothe Y construction and operationof the valve for- .alternately admitting and stopping the iiow of theoil from the oil-cup above into the steamcylinder ofthe engine below, bythe alternate action of the plenum and exhaust of the said cylinder; theobject ,ot' .this part of my 'invention being the production of areliable automatic oiler that will .not be liable to get out of orderi-n use. The second part of my invention relates to the arrangement of aclose steamchamber around and partly under the oil-cup, in combinationwith a hole and channel arranged in the supporting-body of the oilcr soas to alternately permit steam'to pass up intov the said chamber fromthe plenum of the steamcylinder and the resultant water oi condensationto run down into the vacuum of the same; the object ot' this part oi' myinvention being to keep the tallow in the oil-cup always in a properlymelted or duid state, especially in cold weather.

Figure l is a verticalcentral section of the.

' ber C are screwed together rmly by the up per screw-end oi' thesupporting-body D, which screw-end enters through corresponding openingsin the centers et' the respect-ive bottoms of A and l5, the iiangeA aaround the upper edge-of A iitting steamtight down'upon the upper edgeofB, and thus producingthe steamchamber c. The oil-cup has a commondroplid, L', which is hingedtheret'o so as to be readily raised andlowered. The supportingbody'l) is in two parts, d d, screwed together.The object of making' the body in the two parts is to provide for theconstruction and application oi' the stein-valvesv and their seats.There is -a through-hole, d", bored longitudinally through the centerel' cach of the pieces d d, which holes are each enlarged from theirinner ends to the depth of cnc-half inch, more or less, sopas to producethe beveled shoulder 4 around between the said enlargement and the smallhole dt, and also the outer corner ofthe enlarged part of the hole,beveled off or countersunk so as to produce the beveled. shoulder 5,-allof which bevels serve as respective seatsforcorrespondingbevel-facesonthe valvestem E. The two bevels of the middle or large faces at ecorrespond with the two respective bevel-seats 5 5, and the bevels aboveand below the 'middle faces e correspond, respectively, with the beveledseatset i; and the distance apart ol the said middle and respectivo endfaces of the. stem' E oorrospcndwith the respective distances `apartbetween the middle faces e and the faces e e. VThe length between thetwo bevel-faces e" e `of the stem E is about a sixteenth of an inch,more or less, shorter than the distance between the two bevcl-seats et4; and the thickness of the metal on which the two joined or middlebevel-tacos c of the said stem E is about asixteenth of an inch lessthan the distance apart of their respective seats 5 5, so that when thestem E is pushed upward the bevel-face on the upper side of e and thebevel-face c4 above close against their respective seats 5 and 4; andwhen the said stemE-falls the under side of e' and the bevel-face ebelow close against their respective seats. The largest diameters of therespective beveled parts e e c and of the slender parts 6 6 of the stemare about the twentieth of an inch less than the diameters of thesurrounding bore.4 There is a concentric groove, 7, in the under side ofB,which forms a small channel between B and the upper shoulder of D, andalso a like concentric groove, 8, in the upper sideof the bottom.

piece d, which forms asmall channel between D and d when the parts arescrewed u p tightly together, as shown in Fig. l. A straight hole, 9,islbored through thebottom of B and'longitudinally through the parts Dand d, which hole intersects both of the channels 7 and 8. The oiler-isapplied by screwing its lowerend into the steam-cylinder.

The automatic operation is as follows: Melted tallow or the lubricant ispoured .into the cup A, and the movement of the 4piston ofthe enginealternately from the the plenum to the vacuum causes the valve-stem torise andl lall as the bore cl communicates alternately with the saidplenum or vacuum, and when it falls I claim as my inventiona portionofflthe lubricant in the cup A passes l. The four beveled faces e e e e"on the e" into the annular space between e'! and c', valve-stem E, incombination with the correwhere it is retained until the pressure of thespending bevel-seats 4 4 5 5 in the bore ofthe steam in the plenumforces the stem E upward body D, constructed and arranged to be opso asto allow the said portion of the lubricant erated by the plenum and thevacuum of the `to enter the steam-cy1inder,.and at the samesteam-cylinder "of an engine, substantiallyas.

me closes the valves above, and so on, at every and for the purposehereinbefore set forth. complete revolution of the crank of the engine,*2. lThe steam-space C between the oil-cup A the required quantity oithe lubricant is adand the surrounding case B, in combination mittedinto the cylinder, and at the same time with .the hole 9 and channels 7`and 8 in the a small jet of the steam passes fromv the plevbody D ofthe oiler, the said part-s being connum, through the hole 9 and grooves7 and 8, structed and arranged to operate substantially into thechambers C, and keeps the oil-cup as and for the purpose hereinbeforeset forth.

warm, and consequently the lubricant uid in cold weather, the condensedsteam returning as Waterinto the vacuum. A small stop-cock, Witnesses:

b", permits any surplus water to be readily BENJ. MO'RISON,

drawn oil', as occasion may require. WM. H. MORISON.

THOMAS SIMS. y

